JPS6387213U - - Google Patents
Info
- Publication number
- JPS6387213U JPS6387213U JP18203686U JP18203686U JPS6387213U JP S6387213 U JPS6387213 U JP S6387213U JP 18203686 U JP18203686 U JP 18203686U JP 18203686 U JP18203686 U JP 18203686U JP S6387213 U JPS6387213 U JP S6387213U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- pump
- exhaust
- outer tube
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案の実施例の概略構成図、第２図
は従来の排気浄化装置の概略構成図である。
１…排気マニホルド、２…フロントパイプ、３
…触媒、５…ポンプ、６…冷却器、７…３方向切
換弁、１１…外管、１２…内管、１３…空間、１
４…出口ポート、１５…入口ポート、３１…空気
排出パイプ、３２…空気導入パイプ、６１，６２
…接続用パイプ、７１，７２，７３…３方向切換
弁ポート。
FIG. 1 is a schematic diagram of an embodiment of the present invention, and FIG. 2 is a schematic diagram of a conventional exhaust gas purification device. 1...Exhaust manifold, 2...Front pipe, 3
...Catalyst, 5...Pump, 6...Cooler, 7...3-way switching valve, 11...Outer pipe, 12...Inner pipe, 13...Space, 1
4... Outlet port, 15... Inlet port, 31... Air discharge pipe, 32... Air introduction pipe, 61, 62
...Connection pipe, 71, 72, 73...3-way switching valve port.
Claims (1)
化させるようにした排気浄化装置において、前記
触媒上流側の範囲通路を内管および外管からなり
密閉された２重管構造となし、前記外管に出口と
入口とをそれぞれ設け、この出口と入口とを冷却
器、ポンプ及び３方向切換弁を配設した排気循環
回路にて接続し、前記３方向切換弁をエンジンの
冷間時と暖機時とに応じて切換え、冷間時には前
記外管と内管との間の空間の空気を前記ポンプに
より排出し、暖機時には前記空間に前記ポンプに
より冷却空気を循環供給するよう構成したことを
特徴とする排気浄化装置。 In an exhaust purification device that purifies exhaust gas by installing a catalyst in an exhaust passage of an engine, the range passage on the upstream side of the catalyst has a sealed double-tube structure consisting of an inner tube and an outer tube, and the outer tube An outlet and an inlet are respectively provided in the engine, and the outlet and inlet are connected by an exhaust circulation circuit equipped with a cooler, a pump, and a three-way switching valve, and the three-way switching valve is connected to the engine when the engine is cold and when the engine is warmed up. The configuration is such that the air in the space between the outer tube and the inner tube is discharged by the pump when the temperature is cold, and cooling air is circulated and supplied to the space by the pump when the temperature is warmed up. Characteristic exhaust purification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18203686U JPH051616Y2 (en) | 1986-11-28 | 1986-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18203686U JPH051616Y2 (en) | 1986-11-28 | 1986-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6387213U true JPS6387213U (en) | 1988-06-07 |
| JPH051616Y2 JPH051616Y2 (en) | 1993-01-18 |
Family
ID=31127464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18203686U Expired - Lifetime JPH051616Y2 (en) | 1986-11-28 | 1986-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH051616Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101484211B1 (en) * | 2012-11-19 | 2015-01-16 | 현대자동차 주식회사 | Heater of urea supply system for selective catalyst reduction device |
| JP2015102069A (en) * | 2013-11-27 | 2015-06-04 | トヨタ自動車株式会社 | Electric heating type exhaust gas purification system |
-
1986
- 1986-11-28 JP JP18203686U patent/JPH051616Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101484211B1 (en) * | 2012-11-19 | 2015-01-16 | 현대자동차 주식회사 | Heater of urea supply system for selective catalyst reduction device |
| JP2015102069A (en) * | 2013-11-27 | 2015-06-04 | トヨタ自動車株式会社 | Electric heating type exhaust gas purification system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH051616Y2 (en) | 1993-01-18 |